Dusty Bottom/Cloudy Water Issues

[MattTexas]

Ben-

This is DEFINITELY on the pool floor, and its generally falling into crevices that are perpendicular to the water circulation pattern, i.e.

----> | |


They tend to be along the edge more than the center, but definitely on the floor of the pool.

I'm brushing it at dusk every evening - at the same time I chlorinate.

Pump still going 24 hrs.

- Matt

[MattTexas]

@PoolDoc-

You had earlier indicated I didn't need to test my filter because you believed it was "catching algae." I think you based this on my report that, when I backwash, I get green and or brown gunk.

Would there be any harm in trying the DE test just to be sure?

Thanks to everyone for the ongoing help!

[Watermom]

There is no harm, but it really isn't necessary. If it is catching brown and green gunk and your filter pressure is rising, then it is working. If it wasn't working, it wouldn't be catching stuff because it would be blowing it through the filter and back into the pool and thus your pressure wouldn't be rising.

[MattTexas]

@Watermom-

I AM getting gunk when I backwash, but... see #14 above. For whatever reason I've never been able to measure a rise in pressure on my tank, even if I wait many weeks between backwashes.

[MattTexas]

Update:
Measurement at dusk last night 16ppm (0 measurable CC)
Measurement 1 hour after dawn today 16ppm (0 measurable CC)
Will maintain chlorine levels at 15+ today and repeat again tonight.

I backwashed yesterday and got plenty of brown gunk, but still curious about why my pressure gauge doesn't rise on this tank (see #14 above).

[Watermom]

Good that you lost no chlorine overnight and have the CC reading of 0. How does the water look? Keep filtering 24/7. I have no idea why your pressure gauge isn't rising. Maybe someone else will.

[MattTexas]

Water still looks blue/cloudy. Maybe a little less so than on previous days. But that may also be wishful thinking on my part. <G>

Still catching brown-ish "dust" (algae?) in the crevices on the bottom, and I definitely still have a very fine layer of the same stuff falling all across the pool floor. I stirred it up with my brush where it was visible.

Still running pump 24/7.